Which statement best describes a matrix-type patch?

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Prepare for the Manor Preboards Module 5 Test with multiple choice questions and detailed explanations. Enhance your study with structured modules to master the test content efficiently.

Multiple Choice

Which statement best describes a matrix-type patch?

Explanation:
Matrix-type patches place the drug evenly distributed within an adhesive polymer matrix, which is the layer that sticks to the skin. The drug then diffuses out of this matrix into the skin, so the release is governed by diffusion through that adhesive matrix. This description directly captures the defining feature of a matrix-type patch. In contrast, patches that have the drug in a separate reservoir between layers rely on a rate-controlling membrane to regulate release, and statements about cutting the patch or about a rate-controlling membrane point to other designs rather than the matrix type.

Matrix-type patches place the drug evenly distributed within an adhesive polymer matrix, which is the layer that sticks to the skin. The drug then diffuses out of this matrix into the skin, so the release is governed by diffusion through that adhesive matrix. This description directly captures the defining feature of a matrix-type patch. In contrast, patches that have the drug in a separate reservoir between layers rely on a rate-controlling membrane to regulate release, and statements about cutting the patch or about a rate-controlling membrane point to other designs rather than the matrix type.

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